Audio Specifications and Standards

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====Default File/Output Settings====
====Default File/Output Settings====
* <u>masters</u>: .wav/WAVE at 24-bit/44.1khz
* <u>masters</u>: .wav/WAVE at 24-bit/44.1khz
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**''note: [http://www.iasa-web.org/tc04/key-digital-principles IASA TC-04] calls for a minimum sampling rate of 48kHz (preferably 96kHz). We will discontinue use of 44.1kHz sampling rates pending confirmation of appropriate storage space as 24/48 vs 24/44.1 should yield only an 8% increase in space requirements. Projects already underway at the 24/44.1 spec will maintain that specification.''- arora, 062910
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**''note: [http://www.iasa-web.org/tc04/key-digital-principles IASA TC-04] calls for a minimum sampling rate of 48kHz (preferably 96kHz). We will discontinue use of 44.1kHz sampling rates pending confirmation of appropriate storage space as 24/48 vs 24/44.1 should yield only an 8% increase in space requirements. Projects already underway at the 24/44.1 spec will maintain that specification.'' - arora, 062910. ''Update: given remaining storage concerns, we will continue with 24/44.1.'' - arora, 030911.
**typically, 2s of silence is left or created at the beginning of each .wav, with 1s at the end.
**typically, 2s of silence is left or created at the beginning of each .wav, with 1s at the end.
**RMS levels are typically set fairly low, to -25db
**RMS levels are typically set fairly low, to -25db
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** [http://aaf.sourceforge.net/ Advanced Authoring Format] (AAF)
** [http://aaf.sourceforge.net/ Advanced Authoring Format] (AAF)
**SimpleADL
**SimpleADL
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*** [http://journal.code4lib.org/articles/2882 AudioRegent: Exploiting SimpleADL and SoX for Digital Audio Delivery]
 
*** [http://blog.humaneguitarist.org/projects/audioregent/#SimpleADL SimpleADL]
*** [http://blog.humaneguitarist.org/projects/audioregent/#SimpleADL SimpleADL]
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**Other
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*** [http://www.aatranslator.com.au/ AA Translator]
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 +
*Tools
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**[http://www.digitalconfidence.com/MetadataTouch.html Metadata Touch]
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**[http://bwfmetaedit.sourceforge.net/ BWF MetaEdit]

Current revision

Contents

Introduction:

The following provides a brief overview of our standard audio specifications.


Technical Information:

Default File/Output Settings

  • masters: .wav/WAVE at 24-bit/44.1khz
    • note: IASA TC-04 calls for a minimum sampling rate of 48kHz (preferably 96kHz). We will discontinue use of 44.1kHz sampling rates pending confirmation of appropriate storage space as 24/48 vs 24/44.1 should yield only an 8% increase in space requirements. Projects already underway at the 24/44.1 spec will maintain that specification. - arora, 062910. Update: given remaining storage concerns, we will continue with 24/44.1. - arora, 030911.
    • typically, 2s of silence is left or created at the beginning of each .wav, with 1s at the end.
    • RMS levels are typically set fairly low, to -25db 
  For information on derivatives, see For_Creating_Derivatives

Associated Hardware/Software

Resources and Links:

Retrieved from "http://www.lib.ua.edu/wiki/digcoll/index.php/Audio_Specifications_and_Standards"
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